Tech Service HTTI HTA Program “Cutting/Marking Routines”

1. Tech Service HTTI HTA Program “Cutting/Marking Routines”

Technical Training Institute
Tech Service HTTI
HTA Program
“Cutting/Marking Routines”
Author: JDE
Created 7/15/09

2. Cutting/Marking Routines

Technical Training Institute
Our controllers are used for a variety of
functions – but lets look at the three major
routines.
• Plasma Cutting
• Marking
• Oxyfuel
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3. Cutting/Marking Routines

Technical Training Institute
When we look at a “routine” we are going to be
talking about:
• Sequence of operation
• I/O required
• How to configure the CNC system
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4. Cutting/Marking Routines

Technical Training Institute
Typical Oxyfuel Operation:
The Oxyfuel process operates three different gas flows or
stages
One to ignite the flame
One to heat the surface plate
One to cut the plate.
These stages are called Low Preheat, High Preheat (or
Preheat Control), and Cut Gas
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5. Cutting/Marking Routines

Technical Training Institute
Typical Oxyfuel Operation:
The three stages are defined as:
Low Preheat: Low pressure fuel gas used to ignite the flame
High Preheat: High pressure fuel gas with low pressure
Oxygen used to heat the plate to the point where
piercing/cutting can occur
Cut Gas: High pressure Oxygen and fuel gas used to
pierce/cut the plate.
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6. Cutting/Marking Routines

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Install Oxyfuel in the Special Password Screen.
In order to have an Oxyfuel cut mode, Oxyfuel
needs to be selected as a Tool Installed in the
Special Password Screen (6931)
This assignment also gives you the Oxyfuel
Process screen
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7. Cutting/Marking Routines

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Notice* You do not need to install a OxyFuel torch into
the Station Configuration Screen (4170)
Checking OxyFuel in Special Setups (6931)
will give you the OxyFuel Process settings
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8. Cutting/Marking Routines

Technical Training Institute
Typical Inputs used in the Oxyfuel Routine:
Cut Select:
Manually activates the Cut Control output
Operators use this input to manually adjust the cut oxygen gas
flow.
Input is typically driven by a momentary push button switch
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9. Cutting/Marking Routines

Technical Training Institute
Typical Inputs used in the Oxyfuel Routine:
Low Preheat Select:
Manually activates the Low Preheat output
Operators use this input to manually adjust the low preheat
gas flow.
Input is typically driven by a momentary push button switch
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10. Cutting/Marking Routines

Technical Training Institute
Typical Inputs used in the Oxyfuel Routine:
High Preheat Select:
Manually activates the High Preheat output.
Operators use this input to manually adjust the high preheat
gas flow.
Input is typically driven by a momentary push button switch
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11. Cutting/Marking Routines

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Typical Inputs used in the Oxyfuel Routine:
Manual Ignition Select:
Manually activates the ignition output.
Operators use this input to manually activate the igniters'.
Input is typically driven by a momentary push button switch
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12. Cutting/Marking Routines

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Typical Inputs used in the Oxyfuel Routine:
Lower Torch:
Activates the Torch Down output
The output is used to signal the Oxyfuel Cutting
Station to lower the torch.
Input is typically driven by a manual toggle switch
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13. Cutting/Marking Routines

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Typical Inputs used in the Oxyfuel Routine:
Lower All Torches:
Activates all Torch Down outputs
Used in multiple torch applications.
The input is typically driven by a manual toggle switch
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14. Cutting/Marking Routines

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Typical Inputs used in the Oxyfuel Routine:
Raise Torch:
Activates the Torch Up output
The output is used to signal the Oxyfuel Cutting
Station to raise the torch.
Input is typically driven by a manual toggle switch
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15. Cutting/Marking Routines

Technical Training Institute
Typical Inputs used in the Oxyfuel Routine:
Raise All Torches:
Activates the all Torch Up outputs
Used in multiple torch applications.
The input is typically driven by a manual toggle switch
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16. Cutting/Marking Routines

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Typical Inputs used in the Oxyfuel Routine:
Torch Down Sense:
De-activates the Torch Down output when active.
This input is used as a lower limit switch in an Oxyfuel
Cutting Station.
Input is typically a limit switch or proximity switch
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17. Cutting/Marking Routines

Technical Training Institute
Typical Inputs used in the Oxyfuel Routine:
Torch Up Sense:
De-activates the Torch Up output when active.
This input is used as a upper limit switch in an
Oxyfuel Cutting Station.
Input is typically a limit switch or proximity switch
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18. Cutting/Marking Routines

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Typical Outputs used in the Oxyfuel Routine:
Ignition:
Used to activate the ignitors.
Output is timer driven; timer setting is located
in the Oxyfuel Process screen
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19. Cutting/Marking Routines

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Typical Outputs used in the Oxyfuel Routine:
Low Preheat Control:
Used to activate the low preheat gas valves.
The output is timer driven; timer setting is
located in the Oxyfuel Process screen
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20. Cutting/Marking Routines

Technical Training Institute
Typical Outputs used in the Oxyfuel Routine:
High Preheat Control:
Used to activate the high preheat gas valves
Output is timer driven; timer setting is located
in the Oxyfuel Process screen
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21. Cutting/Marking Routines

Technical Training Institute
Typical Outputs used in the Oxyfuel Routine:
Pierce Control:
Output activates during Pierce and remains
active until the Pierce timer is complete.
Pierce Timer is located in the Oxyfuel Process
screen
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22. Cutting/Marking Routines

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Typical Outputs used in the Oxyfuel Routine:
Cut Control:
Used to activate the cut oxygen gas valves.
The output activates after the preheat outputs
and remains active until the M08 (cut off)
command is executed in the part program
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23. Cutting/Marking Routines

Technical Training Institute
Typical Outputs used in the Oxyfuel Routine:
Torch Down:
Used to signal the Oxyfuel cutting station to lower the torch.
Output is timer driven; timer setting is located in the Oxyfuel
Process screen.
Output will shut off if the Torch Down timer expires or the Torch
Down Sense input activates
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24. Cutting/Marking Routines

Technical Training Institute
Typical Outputs used in the Oxyfuel Routine:
Torch Up:
Used to signal the Oxyfuel cutting station to raise the torch.
Output is timer driven; timer setting is located in the Oxyfuel
Process screen.
Output will shut off if Torch Up timer expires or the Torch Up
Sense input activates
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25. Cutting/Marking Routines

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Typical Outputs used in the Oxyfuel Routine:
Lets look at the OxyFuel process screen and
timing chart
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26. Cutting/Marking Routines

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Assign Inputs and Outputs for Oxyfuel in
the I/O setup screen
The I/O assignments for the Oxyfuel system on
the cutting table will depend on the number
of Oxyfuel torches and whether the CNC
will be operating all the torches
independently
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27. Cutting/Marking Routines

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Typical Input layout
for OxyFuel
Table with
Igniters.
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28. Cutting/Marking Routines

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Typical Output layout
for OxyFuel Table
with Igniters.
Notice – How much
I/O did we use
up?
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29. Cutting/Marking Routines

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Setting Up “Watch” window
The Watch window is a great tool for watching
timing and I/O function.
Lets setup Load Phoenix and Setup a Watch
Windows for Oxyfuel
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